The Method of Downloading Files from Different Servers by JSP

In this paper, an example is given to describe the method of downloading files from different servers by JSP. Share it for your reference, as follows:

Recently encountered in the project template download problem: When the server for Tomcat files can be downloaded normally, but when the online (WebLogic server) download template is empty, now record the solution.

public void importSuccess() throws Exception { 
  try { 
   HttpServletResponse response = Struts2Utils.getResponse(); 
   //  Reset response  
   response.reset(); 
   //  Set the response header to 2 Binary flow  
   response.setContentType("application/x-msdownload;charset=utf-8"); 
   response.setContentType("APPLICATION/OCTET-STREAM "); 
   response.setContentType("application/vnd.ms-excel"); 
   response.setHeader("Content-Disposition", 
     "attachment; filename=ComplaintsImportModel.xls"); 
   String path = this.getClass().getClassLoader().getResource("/")// This is the crux of the problem. WebLogic The server wants to read and add 1 A "/" 
     .getPath(); 
   path = path.substring(1, path.length()); 
   String name = File.separator + path + "ComplaintsImportModel.xls"; 
   logger.info("**********************************" + name 
     + "*******************************"); 
   InputStream is = new FileInputStream(name); 
   HSSFWorkbook wb = new HSSFWorkbook(is); 
   //  Get   File stream  
   OutputStream out = response.getOutputStream(); 
   wb.write(out); 
   is.close(); 
   out.flush(); 
   out.close(); 
  } catch (Exception e) { 
   logger.error(" Failed to download export template ", e); 
  } 
}

Keep it for later use

I hope this article is helpful to everyone's jsp programming.